polyglot.ext.jl.ast
Class Instanceof_c

java.lang.Object
  extended by polyglot.ext.jl.ast.Node_c
      extended by polyglot.ext.jl.ast.Term_c
          extended by polyglot.ext.jl.ast.Expr_c
              extended by polyglot.ext.jl.ast.Instanceof_c
All Implemented Interfaces:
java.lang.Cloneable, Expr, Instanceof, JL, Node, NodeOps, Prefix, Receiver, Term, Typed, Copy

public class Instanceof_c
extends Expr_c
implements Instanceof

An Instanceof is an immutable representation of the use of the instanceof operator.


Field Summary
protected  TypeNode compareType
           
protected  Expr expr
           
 
Fields inherited from class polyglot.ext.jl.ast.Expr_c
type
 
Fields inherited from class polyglot.ext.jl.ast.Term_c
exceptions, reachable
 
Fields inherited from class polyglot.ext.jl.ast.Node_c
del, ext, position
 
Constructor Summary
Instanceof_c(Position pos, Expr expr, TypeNode compareType)
           
 
Method Summary
 java.util.List acceptCFG(CFGBuilder v, java.util.List succs)
          Visit this term in evaluation order.
 Type childExpectedType(Expr child, AscriptionVisitor av)
          Get the expected type of a child expression of this.
 TypeNode compareType()
          Get the type to be compared against.
 Instanceof compareType(TypeNode compareType)
          Set the type to be compared against.
 Term entry()
          Return the first (sub)term performed when evaluating this term.
 Expr expr()
          Get the expression to be tested.
 Instanceof expr(Expr expr)
          Set the expression to be tested.
 Precedence precedence()
          Get the precedence of the expression.
 void prettyPrint(CodeWriter w, PrettyPrinter tr)
          Write the expression to an output file.
protected  Instanceof_c reconstruct(Expr expr, TypeNode compareType)
          Reconstruct the expression.
 java.lang.String toString()
           
 Node typeCheck(TypeChecker tc)
          Type check the expression.
 Node visitChildren(NodeVisitor v)
          Visit the children of the expression.
 
Methods inherited from class polyglot.ext.jl.ast.Expr_c
booleanValue, buildTypes, byteValue, charValue, constantValue, doubleValue, dump, floatValue, intValue, isConstant, longValue, printSubExpr, printSubExpr, shortValue, stringValue, type, type
 
Methods inherited from class polyglot.ext.jl.ast.Term_c
exceptionCheck, exceptions, exceptions, listEntry, reachable, reachable
 
Methods inherited from class polyglot.ext.jl.ast.Node_c
addDecls, addMembers, addMembersEnter, addMembersOverride, buildTypesEnter, buildTypesOverride, copy, del, del, disambiguate, disambiguateEnter, disambiguateOverride, enterScope, enterScope, exceptionCheckEnter, exceptionCheckOverride, ext, ext, ext, ext, init, node, position, position, print, printBlock, printSubStmt, throwTypes, translate, typeCheckEnter, typeCheckOverride, visit, visitChild, visitEdge, visitList
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface polyglot.ast.Expr
constantValue, isConstant, printSubExpr, printSubExpr, type
 
Methods inherited from interface polyglot.ast.Node
del, del, dump, ext, ext, ext, ext, position, position, visit, visitChild, visitEdge, visitList
 
Methods inherited from interface polyglot.ast.JL
init, node
 
Methods inherited from interface polyglot.ast.NodeOps
addDecls, addMembers, addMembersEnter, buildTypes, buildTypesEnter, disambiguate, disambiguateEnter, enterScope, enterScope, exceptionCheck, exceptionCheckEnter, throwTypes, translate, typeCheckEnter
 
Methods inherited from interface polyglot.util.Copy
copy
 
Methods inherited from interface polyglot.ast.Typed
type
 
Methods inherited from interface polyglot.ast.Term
exceptions, exceptions, reachable, reachable
 

Field Detail

expr

protected Expr expr

compareType

protected TypeNode compareType
Constructor Detail

Instanceof_c

public Instanceof_c(Position pos,
                    Expr expr,
                    TypeNode compareType)
Method Detail

precedence

public Precedence precedence()
Get the precedence of the expression.

Specified by:
precedence in interface Expr
Overrides:
precedence in class Expr_c

expr

public Expr expr()
Get the expression to be tested.

Specified by:
expr in interface Instanceof

expr

public Instanceof expr(Expr expr)
Set the expression to be tested.

Specified by:
expr in interface Instanceof

compareType

public TypeNode compareType()
Get the type to be compared against.

Specified by:
compareType in interface Instanceof

compareType

public Instanceof compareType(TypeNode compareType)
Set the type to be compared against.

Specified by:
compareType in interface Instanceof

reconstruct

protected Instanceof_c reconstruct(Expr expr,
                                   TypeNode compareType)
Reconstruct the expression.


visitChildren

public Node visitChildren(NodeVisitor v)
Visit the children of the expression.

Specified by:
visitChildren in interface NodeOps
Overrides:
visitChildren in class Node_c
Parameters:
v - The visitor that will traverse/rewrite the AST.
Returns:
A new AST if a change was made, or this.

typeCheck

public Node typeCheck(TypeChecker tc)
               throws SemanticException
Type check the expression.

Specified by:
typeCheck in interface NodeOps
Overrides:
typeCheck in class Node_c
Parameters:
tc - The type checking visitor.
Throws:
SemanticException

childExpectedType

public Type childExpectedType(Expr child,
                              AscriptionVisitor av)
Description copied from interface: Node
Get the expected type of a child expression of this. The expected type is determined by the context in that the child occurs (e.g., for x = e, the expected type of e is the declared type of x. The expected type should impose the least constraints on the child's type that are allowed by the parent node.

Specified by:
childExpectedType in interface Node
Overrides:
childExpectedType in class Node_c
Parameters:
child - A child expression of this node.
av - An ascription visitor.
Returns:
The expected type of child.

toString

public java.lang.String toString()
Overrides:
toString in class Node_c

prettyPrint

public void prettyPrint(CodeWriter w,
                        PrettyPrinter tr)
Write the expression to an output file.

Specified by:
prettyPrint in interface NodeOps
Overrides:
prettyPrint in class Node_c
Parameters:
w - The code writer to which to write.
tr - The pretty printer. This is not a visitor.

entry

public Term entry()
Description copied from class: Term_c
Return the first (sub)term performed when evaluating this term.

Specified by:
entry in interface Term
Specified by:
entry in class Term_c

acceptCFG

public java.util.List acceptCFG(CFGBuilder v,
                                java.util.List succs)
Description copied from class: Term_c
Visit this term in evaluation order.

Specified by:
acceptCFG in interface Term
Specified by:
acceptCFG in class Term_c